Induction method of armoring metal articles



June 10, 1969 I c DAWSON 3,449,146

INDUCTION METHOD OF ARMORING METAL ARTICLES Filed May 16, 1967 Sheet arm 1 1 I CLEANING WORK PIECE 1 (FIG 2) E APPLYING FILM 0F ADHESIVE 0N SURFACE TO B: AZRMORED (FIG 3) SPRINKLING REFRACTORY POWDER ON ADHESIVE FILM INDUOTIVELY HEATING COATED WORK PIECE INSTANTANEOUSLY (FIG 8) I .H COOLING WORK PIECE WITH FUSED SURFACE (FIG 9) V REMOVING LOOSE MATERIAL FROM WORK PIECE (FIG I0) K FORMATION OF CUTTING EDGE (FIG II) INVENTOR Ca s ieriiDawsorz L\ ARMORED WORK PIECE (FIG I2) ATTORNEY June 10, 1969 c DAWSON 3,449,146

INDUCTION METHOD OF ARMORING METAL ARTICLES Filed May 16, 1967 Sheet 3 of 54 June 1 1969 c. H. DAWSON Y Y 3,449,146

I I ND UCTION METHOD OF ARMORING METAL ARTICLES FiledMay 16, 1967 Sheet of 54 ELECTRICAL WORK COIL OSCILLATOR AND TANK CIRCUIT RECTIFIER TRANSFORMER POWER LINE June 10, 1969 c. H. DAWSON INDUCTION METHOD OI ARMORING METAL ARTICLES Sheet Filed May 16, 1967 .554 o 9:3 823 u wmmmm June 10, 1969 c. H. DAWSON INDUCTION METHOD OF ARMORING METAL ARTICLES Filed May 16, 196'? f of 34 Sheet J 10, 1969 c. H. DAWSON 3,449 1 INDUCTION METHOD OF ARMORING METAL ARTICLES Filed May 16, 1967 Shet 6 of 54 T1 81 T12 IE1 SICKLE SECTION BRUSH ASSEMBLY TO BE COATED WITHIN DOTTED AREA /o27 mz a HINGE AND SLIDE SECTION [0/4 June 10, 1969 c. H. DAWSON 3,449,146

I INDUCTION METHOD OF ARMORING METAL ARTICLES Filed May 16, 1967 Sheet 7 of 54 1: E3 ADHESIVE APPLICATOR CIRCUIT AC SOURCE OF ELECTRIC POWER HAND OPERATED STOP swn'cu END-IFORVIIARD-MOTION BUMPER SWITCH SINGLE POLE r f I025 DOUBLE THROW RELAY 1024 (IN NORMALLY CLOSED CONDITION) END-REVERSE-MOTION M BUMPER SWITCH /0.Z6 0* A 4 l a BUMPER SWITCH I8 HELD II OPEN BY BUMPER DURING MACHINE AT READY HINGE REVERSE MOTION WEIGHT OF PART THROW SOLENOID VALVE FORWARD MOTION STARTING SWITCH START-FORWARD-MOTION SWITCH HINGE FORWARD MOTION SOLENOID VALVE "HINGE" REFE'RS TO CARRIER-PARALLELOGRAM-HINGE MECHANICAL and ELECTRICAL ACTIONS FOLLOW IN SEQUENCE FROM START Io RETURN to READY UNLESS HAND OPERATED STOP SWITCH IS TURNEDIOFF TO "FREEZE" ACTION AT ANY DESIRED PHASE FOR SERVICING OR OTHERWISE June 10, 1969 c. H. DAWSON 3,449,146

INDUCTION METHOD OF ARMORING METAL ARTICLES Sheet 5 of :54

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wh m mwmz mwOJo v ZmmO wm m xwmv: mi Oh omhowzzoo June 10, 1969 c H, DAWSON 3,449,146

INDUCTION METHOD OF ARMORING METAL ARTICLES Filed May 16, 1967 1: 33 ADHESIVE APPLICATOR CIRCUIT AC SOURCE OF ELECTRIC POWER HAND OPERATED '1 I STOP SWITCH END-FORWARD-MOTION v swat? IIIR RELAY END-REVERSE-MOTION 3 (IN NORMALLY BUMPER SWITCH I025 CLOSED CONDITIONI MM BUMPER SWITCH Is HELD OPEN BY BUMPER ouRING MAGNINEAT READY HINGE WEIGHT OF PART THROW REVERSE MOTION FORWARD MOTION STARTING SWITCH SOLENO'D VALVE START-FORWARD-MOTION SWITCH "HINGE" REFERs To HINGE CARRIER-PARALLELOGRAM-HINGE' FORWARD MOTION I SOLENOID VALVE SEQUENCE OF ELECTRICAL AND MECHANICAL ACTIONS SWITCH CONTACT CARRIER WHICH IS FASTENED TO LOWER PIECE OF 'HINCEIS MOVED FORWARD AT THE CIRCUIT AND IS HELD CLOSED BEC SAME TIME TI'LL LOWER BUMPER PRESSES END-FORWARD-MOTION SWITCHp END-FORWARD-MOTION SWITCH ACTIVATES RELAY TO CLOSE OTHER I AUSE SAID CLOSING KEEPS RELAY COIL ENERGIZED vUNTIL END-REVERSE- MOTION- NORMALLY-CLOSED SWITCH IS .OPENED; THUS DROPPING RELAY INTO OPPOSITE POSITION. SYSTEM IS THEN READY FOR A NEW COMPLETE CYCLE.

DURING THE ABOVE SEQUENCE THE MECHANICAL COMPONENTS HAVE RETURNED TO THE READY POSITION. I I

Sheet /Z of 54- June 10, 1969 c. H. DAWSON 3,449,146

INDUCTION METHOD OF ARMORING METAL ARTICLES Filed May 16,. 1967 Sheet /3 of 54 PARTS FEEDER AND FUSING MECHANISM CIRCUIT HIGH FREQUENCY GENERATOR PRODUGES SENSING POWER L THEN NORMAL sERvlcE Ac IS usEo THRUOUT 6L 8 HIGH FREQUENCY SWITCH GENERATOR (NORMALLY OPEN 5mg B|A5 CONTROL .IHEAFONRTIMER DIRECTIONAL RELAY ,IL H.F. GENERATOR L SWITCH f monmw T fi I 33 REMOVE WEDGE SOLENOID VALVE I l THRU CYUNDER (NOR/TE OP N) REVERSE MOTION LY E SOLENOID VALVE THRU 1 .55 CYLINDER SW'TGH ENGAGE WEDGE (NORMALLY OPEN) M SOLENOID VALVE -'1 F T THRU L mama OPEN, CLOSE GLAMP DIRECTIONAL SOLENOID VALVE fir THRU CYLINDER "l FORWARD MOTION SOLENOID VALVE I THRU SWITCH CYLINDER PUSH BUTTON CIRCUIT START-EACH-CYCLE-MANUALLY RELEAsE CLAMP SOLENOID VALVE -'---b--- T THRU sIN Ts IYE E SLE CYLINDER SWITCH oousL jTuRow v C(NORMALLY cLosEmj\ A l0 4) SENSED AUTOMATIC CIRCUIT OPERATES IN TIME WITH THE HIGH FREQUENCY GENERATOR TIMING DEVICE June 10, 1969 DAWSON 3,449,146

INDUCTION METHOD OF ARMORING METAL ARTICLES Filed May 16, 1967 Sheet '/4 01-54 COLD ROLLED (AS ROLLED) HOT ROLLED (PIGKLED AND AGGREGATE BLASTED) CAST (P|GKLE0,AGGREGATE BLASTED 0R TUMBLEDI MILLED 4 (As MILLED) FORGED (AGGREGATE BLASTED-OR TUMBLED) BRUSH, SPRAY, on G PRINT.

PASS THRU CURTAIN FALLING FROM MAGNETIC FEEDER OR VIBRATING- MESH BEFORE ADHESIVE SETS.

HEATED UNDER INFLUENCE OF PROTECTIVE ATMOSPHERE OR HEATED RAPIDLY WITH OR WITHOUT ATMOSPHERE SUCH AS INDUCTION HEATING.

PARTS, WHERE PRACTICAL, AND OF SUITABLY ALLOYED BASE METAL MAY BE IMMEDIATELY (WHILE STILL ABOVE CRITICAL TEMPERATURE) QUENCHED IN PROPER BATH AND SUBBE- OUENTLYTEMPERED TO DESIRED TOUGHNESS.

ASHING IN HOT SODA SOLUTION AND WATER OR PLAIN HOT WATER TO EITHER OF WHICH A RUST INHIBITOR HAS BEEN ADDED, THEN WIRE BRUSHING OR TUMBLING.

June 10, 1969 c. H. DAWSON INDUCTION METHOD OF ARMORING METAL ARTICLES Filed May 16, 1967 zOCbww mqx m ommOSEe Shet of 54 June 10, 1969 c. H. DAWSON INI JUCTION METHOD Of ARMORING METAL ARTICLES Filed May 16, 1967 June 10, 1969 INDUCTION METHOD OF ARMORI NG METAL ARTICLES Filed May 16, 1967 Sheet /7 0154 23 Q 23 F? 41 6 LA, fi 44 ma l-A32 c. H. DAWSON 3,449,1 6?

June 10, 1969 c. H. DAWSON INDUCTION METHOD OF ARMORING METAL ARTICLES Filed May 16, 1967 June 10, 1969 c, D W I 3,449,146

INDUCTION METHOD OI ARMORING METAL ARTICLES Filed May 16,1957 Sheet Z of 54- 

